DEAWL
发表于 2025-3-30 11:17:22
Textile Antennas for RFID Applications,y being used for asset and animal tracking, inventory management, supply chains, vehicle tracking, shipping, healthcare, manufacturing, etc. It uses electromagnetic waves to uniquely identify objects. Both active and passive RFID systems are discussed in this chapter. Various antennas are being deve
Esophagitis
发表于 2025-3-30 15:58:55
Recent Trends in the Design and Development of Dielectric Resonator Antennas,ent. DRs possess unique properties such as low losses, high permittivity, and thermal stability. Possible geometries can be rectangular, cylindrical, spherical, etc. Investigation of DRs as efficient radiators started in the year 1983 when cylindrical, rectangular, and hemispherical shapes were expe
种植,培养
发表于 2025-3-30 18:55:27
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子女
发表于 2025-3-30 22:46:46
Reflectarray Antenna Designs,eflectors or complex antenna arrays have fulfilled this role. However, parabolic reflectors pose significant limitations due to their large size and curved surfaces. This translates to a high mass-to-volume ratio, making them cumbersome and impractical for many applications, particularly those requi
宠爱
发表于 2025-3-31 02:56:48
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